Operation Manual / TPL67-C.. - TPL71-C..
Page 34
© Copyright 2016 ABB. All
rights reserved.
April 2016 HZTL2488_EN Revision C
The oil pressure in front of the turbocharger must be maintained precisely
to ensure trouble-free operation.
The permissible oil pressure ranges at measuring point M (blind connec-
tion) on the turbocharger are listed below.
Oil pressure in front of the turbo-
charger [bar]
Permissible, for normal operation
1.3 … 2.5
Permissible, during engine warm-up 1.3 … 5.0
Temporarily permissible ( < 1h ) ->
1.1 … 1.3
Not permissible ->
0.0 … 1.1
Permissible, during pre- and post-lubrication
(engine stopped)
0.2 … 2.5
To make sure these oil pressures are obtained, a regulating orifice is
fitted in the turbocharger oil inlet. The orifice is fitted by the engine
builder and secured by a safety ring.
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